Insider Trading via the Corporation

A U.S. firm buying and selling its own shares in the open market can trade on inside information more easily than its own insiders because it is subject to less stringent trade-disclosure rules. Not surprisingly, insiders exploit these relatively lax rules to engage in indirect insider trading: they have the firm buy and sell shares at favorable prices to boost the value of their own equity. Such indirect insider trading imposes substantial costs on public investors in two ways: by systematically diverting value to insiders and by inducing insiders to take steps that destroy economic value. To reduce these costs, I put forward a simple proposal: subject firms to the same trade-disclosure rules that are imposed on their insiders.